Moscow ensemble of Jewish music "Mitzvah" - a professional collective of a high-quality performing level - actively acts with its concerts since 1990s. The founder and the manager of the ensemble is Victor Lenzon - the pianist and the musicologist, who brilliantly graduated from the Moscow Conservatory, the professor, the Doctor of Art criticism, the Honoured Artist of Russia, Corresponding member of the International Informatization Academy, the author of many publications concerning Jewish music and Jewish theatre, the creator of the popular collection "150 melodies for klezmer".